Four new BL Lac surveys: sampling new populations

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The advent of large area deep radio and X-ray surveys is leading to the creation of many new BLLac samples. In particular, the ROSAT All-Sky, Green Bank and FIRST surveys are proving to be rich sources of new BLLacs. We will discuss the methods used in four in-dependent BLLac searches based on these surveys. Comparison of the broadband spectral energy distributions of these BLLac with those of previously known objects clearly points to the existence of a large previously unrecognized population of objects with characteristics intermediate between those exhibited by Low and High energy peaked BLLacs.

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736 Kilobytes pages

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Schmidt, G.; Becker, R. H.; Brinkmann, W.; Feigelson, E. D.; Kollgaard, R. I.; Laurent-Muehleisen, S. et al. June 1, 1998.

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The advent of large area deep radio and X-ray surveys is leading to the creation of many new BLLac samples. In particular, the ROSAT All-Sky, Green Bank and FIRST surveys are proving to be rich sources of new BLLacs. We will discuss the methods used in four in-dependent BLLac searches based on these surveys. Comparison of the broadband spectral energy distributions of these BLLac with those of previously known objects clearly points to the existence of a large previously unrecognized population of objects with characteristics intermediate between those exhibited by Low and High energy peaked BLLacs.

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736 Kilobytes pages

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  • BL Lac Phenomenon Conference, Turku (FI), 06/22/1998--06/26/1998

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  • Report No.: UCRL-JC-132530
  • Report No.: YN0100000
  • Report No.: 95-ERI-006
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 2773
  • Archival Resource Key: ark:/67531/metadc671004

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Office of Scientific & Technical Information Technical Reports

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  • June 1, 1998

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  • June 29, 2015, 9:42 p.m.

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  • May 6, 2016, 1:23 p.m.

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Schmidt, G.; Becker, R. H.; Brinkmann, W.; Feigelson, E. D.; Kollgaard, R. I.; Laurent-Muehleisen, S. et al. Four new BL Lac surveys: sampling new populations, article, June 1, 1998; California. (digital.library.unt.edu/ark:/67531/metadc671004/: accessed October 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.